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bq2408 充电异常?

Other Parts Discussed in Thread: BQ24080, BQ24085

问题一:充电数小时后,明明已经亮灯(充饱),但是最后充电led持续闪烁..

问题二.充电无原无故跳到最高500mA电流乱充.

  • 是bq24080么?你说的LED持续闪烁是STAT1和STAT2都闪烁还是某个?可以量测是输入电压,PG处LED状态是否正常,有fault事件发生时,STAT1和STAT2是高阻外部LED是关闭的,不该有闪烁现象。

  • bq24085 与官方借 demo board测试,LED微亮代表什么?

    STAT1~2都会乱闪,拔掉IC重焊又正常,但是使用一天后...问题又开始发生...(最后发现只要火烤一下 bq24085...就会正常运作~~哈哈)

    闪烁后最后还会暴冲 500mA(设定80mA)....吓死了